Flomax and Gemtesa drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Flomax (tamsulosin hydrochloride) and Gemtesa (vibegron). Common drug interactions include seizure among females and pruritus among males.

The phase IV clinical study analyzes what interactions people have when they take Flomax and Gemtesa. It is created by eHealthMe based on reports of 20 people who take the same drugs from the FDA, and is updated regularly.

What is Flomax?

Flomax has active ingredients of tamsulosin hydrochloride. It is often used in enlarged prostate. eHealthMe is studying from 52,865 Flomax users. Check the latest studies of Flomax.

What is Gemtesa?

Gemtesa has active ingredients of vibegron. eHealthMe is studying from 2,648 Gemtesa users. Check the latest studies of Gemtesa.

On Jul, 17, 2026

20 people who take Flomax and Gemtesa together, and have interactions are studied.

What are the common drug interactions of Flomax and Gemtesa, by gender? *:

female:

Seizure (abnormal excessive or synchronous neuronal activity in the brain)
Blood folate decreased
Bradycardia (abnormally slow heart action)
Burning sensation
Hyperglycaemia (high blood sugar)
Multiple sclerosis relapse (reoccurrence of a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath)
Neurological symptom (symptoms of nervous system disease)
Speech disorder
Urine amphetamine positive
Vitamin b12 increased

male:

Pruritus (severe itching of the skin)
Dysuria (painful or difficult urination)
Paranoia (psychotic disorder characterized by delusions of persecution with or without grandeur)
Pollakiuria (abnormally frequent passage of relatively small quantities or urine)
Seizure (abnormal excessive or synchronous neuronal activity in the brain)
Urticaria (rash of round, red welts on the skin that itch intensely)
Abnormal behaviour
Back disorder
Balance disorder
Fall

What are the common drug interactions of Flomax and Gemtesa, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

n/a

50-59:

n/a

60+:

Seizure (abnormal excessive or synchronous neuronal activity in the brain)
Constipation
Hyperglycaemia (high blood sugar)
Multiple sclerosis relapse (reoccurrence of a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath)
Neurological symptom (symptoms of nervous system disease)
Nocturia (the need to get up in the night to urinate)
Pollakiuria (abnormally frequent passage of relatively small quantities or urine)
Speech disorder
Urinary retention (the inability to completely or partially empty the bladder)
Urine amphetamine positive

What are the existing conditions these people have? *

Hypertonic Bladder (bladder-storage function that causes a sudden urge to urinate): 9 people, 45.00%
Pain: 3 people, 15.00%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 2 people, 10.00%
Urinary Incontinence (inability to control the flow of urine and involuntary urination): 2 people, 10.00%
Hallucinations (sensations that appear real but are created by your mind): 2 people, 10.00%
High Blood Pressure: 2 people, 10.00%
Delusion (a false belief or opinion): 2 people, 10.00%
Parkinson's Disease: 2 people, 10.00%
Sleep Disorder: 2 people, 10.00%
Constipation: 1 person, 5.00%

* Approximation only. Some reports may have incomplete information.

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